Integral nut and bearing for friction-clutches.



A. LAMBERT. INTEGRAL NUT AND BEARING FOR FRICTION CLUTCHES.

APPLICATION FILED APR.29. 1915.

1,157,232. Patented Oct. 19, 1915.

A. LAMBERT.

INTEGRAL NUT AND BEARING FOR FRICTlON CLUTCHES.

APPLICATION FILED APR-29.1915.

1,157,232, Patented 001. 19, 1915.

2 SHEETS-SHEET 2.

COLUMBIA PLANOORAPH c0.,wAsHlNoTuN D c Clutches, fully 7 the following specification and the accom-" forming a part of the,

ASHEBrIiA-MIBERT,OFTNEWARK, ivnw Jansen;

Y a INTEGRAL.

To all whom it may concern;

Be'itknown that. I, AsHun LAMBERT, a citizen of the United States, residingatl J ohnson avenue, Newark, county of 1 Essex,-

and State of New J ersey, have invented cer- 1 "ta-in new and useful Improvements in In- Frictiontegral-Nuts and Bearings lfor' described and represented in panying drawing, same.

in means for actuating the yfriction-clutch of a drum in a power hoisting-mach ne where it is necessary to connect and discon- '1 with great facility; Heretofore, suchla con- 5 carried a friction-driver,

drum by means of a screw and hand-lever end with a cylindrical so that the efiect nection has been formed by fitting-thedrum to turn loosely upon a power-shaft which I and pressing the toward the friction-driver to rotate the drum when desired; Such screw-nut'commonly extends outsidethe end of the-dr'um shaft and operates to press upon a pin move able in the center of the shaft and connected with a cross-piece and collar toftransmit.

the pressure of the screw to one end of the drum; but the screw cept'that and being pressed sidewise as a resultantofthelever-pressure which rotates it, is croWded forcibly toward one side of the nut with the effect of jamming it in the threads of the nut and wearing out the samewith needless rapidity.

such ammlng also offers a great resistance .to the rotating of the nut'by the hand-lever,

of the screw is materially diminished in crowding the drum endwise. The object of the present invention is to furnish a'compact and simple construction for providing the stem of screw with a bearing'outside of the nut, whereby the nut and screw-bearing are formed in one piece with a so-called claw attached to the outer side of the drum-shaft bearing.

The claw is formed with a hollow body to embrace a thrust-collar attached to the end of the shaft outside of the, shaft-bearing, andcarries an integral boss upon its outer end, which is formed at its inner end with a nut for the thrust-screw, and at its outer bearing for the stem This-inventionrelates to an improvement I ings opened; I Fig;

' Outside of the bearing the shaft, and a driver having no bearlng (-3X' afforded by the thread in the nut,

The friction produced by through the vn'r Ann BEARING Fort rrms'r'ijoiv{omireiias.

r fi t r 3 ratent edoct. 1a, 1915. I 1 Application nlea Aprii 2e, m ni an-alive. 24,681. r

of thescrew to whichthe hand-lever isv attached. Y

".By forming the nut and. bearing in one the nut,-and thus-Vin perfect :axial alinementc therewith. 1 The invention willbe understood by referenceato the annexed. drawing, in which- Figurel isa perspe tive' view of a hoistere drfumand its bearing to which the present improvement israpplied; Fig. 2 is a longitudinal section of the drum and the. claw, with the shaft, and. one, of the shaft-bearv 3; is aside elevation of the shaft-bearing having the claw attached, thereto, and'F-ig. 4 is anendview ofthe bearingandclaw A is the drum-shaft fitted near its opposite ends to the1 shaft-bearings C and C.

I C a shaft thrustcollar D is: shown secured upon the end of thrust-collar E is shown fitted against a-shoulder Ar: upon the shaft inside .of the. bearing C.

A driving-gear is shown fitted'to. turn-l fitted to the shaft inside the usual cross-piece b is fitted through the shaft against the pushring, and a push-pin c is fitted to a bore in a the shaft extending from the cross-piece 1) Outer end of the shaft, where the inner endjof the screw .03 may press upon it. i V 1 The claw is shown with ahollow body 6 adapted to fit over the shaft-thrust-collar D and secured to the outer side of the bearing by bolts f. The hollow body 6 carries anv integral boss e which is formed at its inner part" with a nut g for the body d of the screw. A- hand-lever i is shown secured upon the stem of the screw and provided V ,tirelyrby lateralp'ressurezupon the lever" it is evident that a strong lateral pressureis exerted against the stern'e of thescrew, 7 which lateral'pressure'is the claw tothe bearing *0. rhe aw i fitted v accurately to the faced seat 6 upon the C and the desired i drum-shaft withLbearingsnear its opposite 1 Y in outer side of the bearing alinernent is thus secured. 1

qAs the thrust of the screw is developed enby the bearing h and all lateral pressure upon'the threads of the much less frictional, resistance to thepower of the operator when moving the lever 6,. and the power is thus available to press the f drum toward the'driving-olutch,

The shaft where supported in the bearing C, is turned with a series of grooves form-' ing collars a, which are fitted to a. Babbitt lining a in the bearing, and thus resist the.

end-thrust upon'ithe shaft which is'eXerted against the shoulder V A, when the? drum is pressed by the screw: toward the i driving gear F.

; The 'shaft-thrust-collar D is stper-addd the shaft or bearing bearing C, and the upon the end of the be'aring'; i a

7 Having 'thusset forth the nature ot invention what isolaimed 'herein'is:

1. In a hoister having a drum-shaft w ith bearings near its opposite ends and having a-thrust-collar attached thereto'outs'ide of one of the bearings, the combination, with such bearing,

7 Copies 6': this patent maybe obteiinedforfive ce itseaeh,addressing-the ;-Co1nmiss1one1 of I'a'tents; a I

wholly supported" 7 nut? and screw liSf eliminated. The screw thus turns with of a claw having a hollow body to fit over the said thrust-collar; and having foi-Ined integral therewith a nut fora thrusts'crew anda bearing th te f crewoutside ofsuc'h ma; 7 1

f2. In a hoister, the, combination with a ends cand having thrustcollar attached thereto outside of one of "theishaft-bearings,

saidjbearing;andihaving a nut for a thrustscrew, with a bearing outside ofthenut i for the stem of the screw and a screw fitted to such nut and bearing-and provided with" a leverT-to turn the screw, 'the' nut beingrelieve'dfrorn thelateral-pressure of the lever by the said outside bearing. i

3. In a'hoi'ster, the combination," a"

drum-shaftwith-bearings near its opposite ends and having .ashaft-thrust-collar attached thereto outside of one vof the bearings, of T21,v driver-thrust-collar ';attached thereto inside of'the opposite bearing witha;

to. its inner facegi adrum mounted toturn fitted to, engage the friction-driven a pin upon the shaft between the bearings and '65 fitted movably in the opposite end of the I shaft 3170 press j the drum endwise, and" a j claw. havingjah'ollow body fitted outside of adjacent shaft-'bearingiand having integral 'theshaft thrustecollar and attached to the- Y a V therewith a nutfor 1a .thrust-sorew' landv a I bearing outside of the nut for the ,shankif of such screw, with a screw fitted to such nut and bearing and havi a l fordtumingi the screw. i. V. V a,

my: hand. 1

Intestimony whereof I haveihereunto set" I i ASHER: LAiMBEltTi 50f aclaw havinga hollowbody fittedoverY' the said 'thrust collar and attached to the 6o 1 driving-gear rotatableoupon the shaft gjadc jacent theretoand friction-driver attached V 

